Hi. I was able to follow the instructions in views_data_export/README.txt to set up a Data Export display. What I'm confused by is how to attach this to another one of my displays. The readme says that I should update " the "Attach to:" option in feed settings". I updated this so that it's attached to my Page display. However, when I refresh the view-page, I don't see any icons or links or anything. What am I missing?